126747669 has 8 divisors (see below), whose sum is σ = 170739520. Its totient is φ = 83627136.

The previous prime is 126747589. The next prime is 126747671. The reversal of 126747669 is 966747621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126747669 - 2¹³ = 126739477 is a prime.

It is a super-2 number, since 2×126747669² = 32129943193867122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126747169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217489 + ... + 218070.

It is an arithmetic number, because the mean of its divisors is an integer number (21342440).

Almost surely, 2^126747669 is an apocalyptic number.

It is an amenable number.

126747669 is a deficient number, since it is larger than the sum of its proper divisors (43991851).

126747669 is an equidigital number, since it uses as much as digits as its factorization.

126747669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435659.

The product of its digits is 762048, while the sum is 48.

The square root of 126747669 is about 11258.2267253773. The cubic root of 126747669 is about 502.3194490082.

Subtracting from 126747669 its sum of digits (48), we obtain a palindrome (126747621).

The spelling of 126747669 in words is "one hundred twenty-six million, seven hundred forty-seven thousand, six hundred sixty-nine".